ASN logo
ASN Wikibase Occurrence # 18531
Last updated: 25 September 2021
This information is added by users of ASN. Neither ASN nor the Flight Safety Foundation are responsible for the completeness or correctness of this information. If you feel this information is incomplete or incorrect, you can submit corrected information.

Date:29-JUN-1998
Time:10:52
Type:Silhouette image of generic B06 model; specific model in this crash may look slightly different
Bell 206B JetRanger
Owner/operator:Helicopter Services Ltd
Registration: G-BLZN
MSN: 314
Fatalities:Fatalities: 0 / Occupants: 2
Other fatalities:0
Aircraft damage: Substantial
Category:Accident
Location:Wycombe Air Park, Booker, near Marlow, Buckinghamshire -   United Kingdom
Phase: Taxi
Nature:Private
Departure airport:Wycombe Air Park, Booker (EGTB)
Destination airport:Wycombe Air Park, Booker (EGTB)
Investigating agency: AAIB
Narrative:
Substantially damaged when clipped the rotor blades of another Bell 206 helicopter (G-BUZZ) whilst "hover taxying" at Wycombe Air Park (Booker) near Marlow, Buckinghamshire on 29/6/1998. According to the official AAIB report into the incident:

"The pilot of G-BLZN was returning to his base helipad on completion of a public transport flight. The helipad had four "spots" marked H1, H2, H3, H4 in a straight line and separated by a distance of 11.9 metres (39 feet). The rotor diameter of each helicopter was 10.16 metres (33 feet 4 inches).

The surface wind was 300 degrees/12 knots as the pilot approached the helipad, and he saw that another company helicopter, G-BUZZ, was occupying H3 with its rotors turning. He hover taxied to H1 and turned his aircraft onto a westerly heading in preparation for landing. When stabilised, he moved to the right, landed on H2 and commenced his shut-down drills. After some five to ten seconds, he both felt and heard a thud which he initially thought was something striking the tail rotor. The pilot looked round in an attempt to identify the cause of the thud but could see nothing.

However, some seconds later, another thud was felt and the passenger informed the pilot that the rotors of the two helicopters were colliding. The pilot did not consider that this was possible but as a precaution he moved his helicopter 2 to 3 feet to the left and relanded. There were then a series of bangs and the helicopter became unstable. The pilot ordered his passenger, who was in the front seat, to evacuate the helicopter which he did successfully. The helicopter then became uncontrollable and rolled over onto its right side. The pilot closed the throttle and exited the helicopter through the left door which was now uppermost.

At the time of the accident, G-BUZZ was awaiting take-off clearance for its first flight of the day. When the ground crew had wheeled it on to H3, they had positioned it some eight feet to the left of centre. This would have allowed the rotors of both helicopters to overlap by some two feet, assuming that G-BLZN was landing on the centre of H2."

G-BLZN was later repaired and returned to service. Sold on 4 times as G-BLZN before it became G-SUET on 30/3/2011

Sources:

1. AAIB: https://assets.publishing.service.gov.uk/media/5422f4a5ed915d1371000523/dft_avsafety_pdf_502176.pdf
2. CAA: https://siteapps.caa.co.uk/g-info/rk=BLZN
3. http://www.griffin-helicopters.co.uk/accidentdetails.aspx?accidentkey=14833
4. https://www.pprune.org/rotorheads/419023-rotary-nostalgia-thread-36.html#post6541744

Accident investigation:
cover
  
Investigating agency: AAIB
Status: Investigation completed
Duration:
Download report: Final report


Images:


RAF Waddington International Air Show, Lincolnshire, UK - 4th July 2009

Revision history:

Date/timeContributorUpdates
17-May-2008 11:10 ASN archive Added
22-Nov-2012 17:05 Dr. John Smith Updated [Operator, Total fatalities, Total occupants, Other fatalities, Location, Country, Phase, Nature, Departure airport, Source, Embed code, Damage, Narrative]
27-Nov-2014 15:42 Dr. John Smith Updated [Time, Source, Embed code, Narrative]
23-Mar-2015 14:24 Dr. John Smith Updated [Narrative]
23-Mar-2015 14:24 Dr. John Smith Updated [Narrative]
25-Jun-2016 19:16 Dr.John Smith Updated [Time, Location, Departure airport, Destination airport, Source, Narrative]
27-Jul-2020 19:23 Peter Clarke Updated [Photo]

Corrections or additions? ... Edit this accident description